Ultrasonic phased array based detection system
A technology of ultrasonic phased array and detection system, applied in the field of ultrasonic phased array
Active Publication Date: 2019-01-29
INST OF ACOUSTICS CHINESE ACAD OF SCI
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[0003] At present, some specialized ultrasonic phased array equipment are often only for the detection of specific situations, so there are certain limitations in some technical specifications, while commercial ultrasonic phased array detectors are more general, but they are still Some limitations exist, e.g. most only support transmission of pulsed stimulus waveforms
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[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] The present invention designs a detection system based on ultrasonic phased array, which can overcome many limitations of current ultrasonic phased array detectors (such as most detectors only support the emission of pulse excitation waveforms), making the ultrasonic phased array technology It is possible to carry out more in-depth and comprehensive research on existing applications and further explore new imaging methods. The detection device based on the ultrasonic phased array designed by the present invention can support simultaneous transmission and reception of 64 independent channels at most. The transmitting part supports the selection of excitation waveform types such as negative spike, infinite duration sine wave, and finite duration arbitrary waveform. The receiving part supports the digitization frequency of the echo up to ...
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The invention discloses an ultrasonic phased array based detection system. The system includes a motherboard (1), a clock distribution and data summary board (2), several emission control and collection processing boards (3), a broadband high-voltage amplifier board (4) and a signal emitting and echo receiving board (5); the clock distribution and data summary board (2) is used for distributing system clocks to each emission control and collection processing board (3) and sending wave beam data sent by each emission control and collection processing board (3) to the motherboard (1) after collecting; the emission control and collection processing boards (3) are used for generating triggering signals with different types to send to the signal emitting and echo receiving board (5) and receiving echo signals of the signal emitting and echo receiving board (5) to form the wave beam data; and the signal emitting and echo receiving board (5) is used for selecting the triggering signals with different types to send to an array transducer (6) and receiving the echo signals of the array transducer (6).
Description
technical field [0001] The invention relates to the technical field of ultrasonic phased arrays, in particular to a detection system based on ultrasonic phased arrays. Background technique [0002] Ultrasonic phased array detection technology has been widely developed and applied in the non-destructive field due to its convenience, high efficiency, high sensitivity, and high signal-to-noise ratio compared with conventional ultrasonic detection. In addition, some new ultrasonic detection and imaging methods are mostly carried out on the basis of ultrasonic phased array technology, such as adaptive focusing technology, guided wave focusing detection, etc. [0003] At present, some specialized ultrasonic phased array equipment are often only for the detection of specific situations, so there are certain limitations on some technical specifications, while commercial ultrasonic phased array detectors are more general, but they are still There are some limitations, for example mo...
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IPC IPC(8): G01N29/22
CPCG01N29/22
Inventor 董晗王俊张碧星师芳芳孔超
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI